CVE-2026-13593: CSS::Minifier::XS versions before 0.14 for Perl have a memory leak when the entire document is minified away. The minify function has a memory leak when processing a document cont
CSS::Minifier::XS versions before 0.14 for Perl have a memory leak when the entire document is minified away.
The minify function has a memory leak when processing a document containing only characters to be removed, such as comments and whitespace.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-13593
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-135930.24% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 15% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-13593 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for CSS
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
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- highCVE-2026-13347: The Hide My WP Lite plugin for WordPress is vulnerable to Arbitrary File Read in versions up t…nvd · 2026-07-10
- highGHSA-9pmc-p236-855h: Ruby CSS Parser: SSRF and Local File Disclosure in `CssParser::Parser#read_remote_file`ghsa · 2026-07-09
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